Intake manifold nut for w210 e class? - Mercedes-Benz Forum
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post #1 of 14 (permalink) Old 07-14-2019, 11:13 PM Thread Starter
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One of the intake manifold nuts is missing(picture attached below to show which bolt it belongs to), which means the bolt spins when the engine's on and it's causing a lot of rattling. So bad that the engine noise leaks into the cabin, along with the road noise that those terrible Michelin Primacy 3st tyres that conduct the road nose into the cabin. Apparently Michelin is terrible in India. Looked that up after buying the tyres. When I hold the box in place with my hand, the noise goes down again. I'm trying to find those nuts (they're either rectangular or square in shape), but no luck. Does anyone at least know the specifications of these nuts, so that I can try to find them in this fairly remote place? And I don't know what's supposed to go in the place of the zip ties that's holding this to the engine. Anyway, thanks in advance.
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post #2 of 14 (permalink) Old 07-14-2019, 11:31 PM
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Please update your user cp info.
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post #3 of 14 (permalink) Old 07-15-2019, 09:55 AM Thread Starter
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User cp updated. Anyone know the specs of this nut?
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post #4 of 14 (permalink) Old 07-15-2019, 10:56 AM
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I am wondering if you can take the bolt in at a hardware store and shop for the proper threading of the nut

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post #5 of 14 (permalink) Old 07-15-2019, 01:53 PM
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Originally Posted by thebrokeenthusiast View Post
One of the intake manifold nuts is missing(picture attached below to show which bolt it belongs to), which means the bolt spins when the engine's on and it's causing a lot of rattling. So bad that the engine noise leaks into the cabin, along with the road noise that those terrible Michelin Primacy 3st tyres that conduct the road nose into the cabin. Apparently Michelin is terrible in India. Looked that up after buying the tyres. When I hold the box in place with my hand, the noise goes down again. I'm trying to find those nuts (they're either rectangular or square in shape), but no luck. Does anyone at least know the specifications of these nuts, so that I can try to find them in this fairly remote place? And I don't know what's supposed to go in the place of the zip ties that's holding this to the engine. Anyway, thanks in advance.
Just a hunch, but these look like torx star bolts you need a torx socket to remove them. (You need this set in your asenal for DIY) Then take one to use as a sample to get the correct specs and you can go with a hex head with the same thread specs, if sourcing the torx head is a problem

What zip tie are you refering to? nylon or metal?
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post #6 of 14 (permalink) Old 07-16-2019, 05:03 AM Thread Starter
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Quote:
Originally Posted by khomer2 View Post
Just a hunch, but these look like torx star bolts you need a torx socket to remove them. (You need this set in your asenal for DIY) Then take one to use as a sample to get the correct specs and you can go with a hex head with the same thread specs, if sourcing the torx head is a problem

What zip tie are you refering to? nylon or metal?
Yup, I think I already have this socket set. But I'm a little far from home, and we have a place here that has automotive parts, so I thought I could get the nut directly if I knew the exact specs. Attaching pictures of the nut for clarity. Is this a standard hexagonal nut?

https://photos.app.goo.gl/SJVscg98LTJhT1wv9

The zip tie I was referring to is the one above these torx bolts(in the picture in the original post). The plastic White ones.
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post #7 of 14 (permalink) Old 07-16-2019, 06:10 AM
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Originally Posted by thebrokeenthusiast View Post
Yup, I think I already have this socket set. But I'm a little far from home, and we have a place here that has automotive parts, so I thought I could get the nut directly if I knew the exact specs. Attaching pictures of the nut for clarity. Is this a standard hexagonal nut?

https://photos.app.goo.gl/SJVscg98LTJhT1wv9

The zip tie I was referring to is the one above these torx bolts(in the picture in the original post). The plastic White ones.
Post your VIN or at least first six digits of model designation 210xxx.

It looks like square M6 nut. Measure the bolt to confirm.

https://www.amazon.com/DIN557-Square...ustrial&sr=1-8
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post #8 of 14 (permalink) Old 07-16-2019, 02:54 PM Thread Starter
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Originally Posted by Witek_M View Post
Post your VIN or at least first six digits of model designation 210xxx.

It looks like square M6 nut. Measure the bolt to confirm.

https://www.amazon.com/DIN557-Square...ustrial&sr=1-8
The first six digits of the model designation are 210006. Any chance it could be an M4?

Thanks
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post #9 of 14 (permalink) Old 07-16-2019, 03:44 PM
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The first six digits of the model designation are 210006. Any chance it could be an M4?

Thanks
Here is picture of air cleaner. Bolts and nuts are part of assembly #14

Take on of the bolts out and measure it.

https://engineering.ucdavis.edu/wp-c...08/THREADS.pdf
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post #10 of 14 (permalink) Old 07-16-2019, 06:58 PM
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What I see on the picture is Torx head bolt and in USA, the only way to get replacement is dealer as no US hardware carries Torc metrics.
The trick with Torx bolts is that the same head can have different diameters bolts under.
If dealer's route is not easy to go, remove the next bolt, measure thread and length and get hex head replacement.
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